hy/tests/native_tests/defclass.hy
Gergely Nagy 9f88e07e1d Drop a set of brackets from let.
This changes let to use a flat list of symbol-value pairs instead of a
vector of vectors. One side effect is that (let [[a 1] z]) is not
expressible now, and one will explicitly need to set a nil value for z,
such as: (let [a 1 z nil]).

Closes #713.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
2015-10-01 10:08:04 +02:00

126 lines
2.8 KiB
Hy

(defn test-defclass []
"NATIVE: test defclass simple mechanism"
(defclass A)
(assert (isinstance (A) A)))
(defn test-defclass-inheritance []
"NATIVE: test defclass inheritance"
(defclass A [])
(assert (isinstance (A) object))
(defclass A [object])
(assert (isinstance (A) object))
(defclass B [A])
(assert (isinstance (B) A))
(defclass C [object])
(defclass D [B C])
(assert (isinstance (D) A))
(assert (isinstance (D) B))
(assert (isinstance (D) C))
(assert (not (isinstance (A) D))))
(defn test-defclass-attrs []
"NATIVE: test defclass attributes"
(defclass A []
[x 42])
(assert (= A.x 42))
(assert (= (getattr (A) "x") 42)))
(defn test-defclass-attrs-fn []
"NATIVE: test defclass attributes with fn"
(defclass B []
[x 42
y (fn [self value]
(+ self.x value))])
(assert (= B.x 42))
(assert (= (.y (B) 5) 47))
(let [b (B)]
(setv B.x 0)
(assert (= (.y b 1) 1))))
(defn test-defclass-dynamic-inheritance []
"NATIVE: test defclass with dynamic inheritance"
(defclass A [((fn [] (if true list dict)))]
[x 42])
(assert (isinstance (A) list))
(defclass A [((fn [] (if false list dict)))]
[x 42])
(assert (isinstance (A) dict)))
(defn test-defclass-no-fn-leak []
"NATIVE: test defclass attributes with fn"
(defclass A []
[x (fn [] 1)])
(try
(do
(x)
(assert false))
(except [NameError])))
(defn test-defclass-docstring []
"NATIVE: test defclass docstring"
(defclass A []
[--doc-- "doc string"
x 1])
(setv a (A))
(assert (= a.__doc__ "doc string"))
(defclass B []
"doc string"
[x 1])
(setv b (B))
(assert (= b.x 1))
(assert (= b.__doc__ "doc string"))
(defclass MultiLine []
"begin a very long multi-line string to make
sure that it comes out the way we hope
and can span 3 lines end."
[x 1])
(setv mL (MultiLine))
(assert (= mL.x 1))
(assert (in "begin" mL.__doc__))
(assert (in "end" mL.__doc__)))
(defn test-defclass-macroexpand []
"NATIVE: test defclass with macro expand"
(defmacro M [] `(defn x [self x] (setv self._x x)))
(defclass A [] (M))
(setv a (A))
(a.x 1)
(assert (= a._x 1)))
(defn test-defclass-syntax []
"NATIVE: test defclass syntax with properties and methods and side-effects"
(setv foo 1)
(defclass A []
[x 1
y 2]
(global foo)
(setv foo 2)
(defn greet [self]
"Greet the caller"
"hello!"))
(setv a (A))
(assert (= a.x 1))
(assert (= a.y 2))
(assert foo 2)
(assert (.greet a) "hello"))
(defn test-defclass-implicit-nil-for-init []
"NATIVE: test that defclass adds an implicit nil to --init--"
(defclass A []
[--init-- (fn [self] (setv self.x 1) 42)])
(defclass B []
(defn --init-- [self]
(setv self.x 2)
42))
(setv a (A))
(setv b (B))
(assert (= a.x 1))
(assert (= b.x 2)))